Viera, C. J., Kopsell, E., Beer, J., Jiménez Otárola, F., & Lok, R. (1999). Forestry incentives to establish and manage timber trees in coffee fields.
Citación estilo ChicagoViera, Carlos J., Edgar Kopsell, John Beer, Francisco Jiménez Otárola, y Rosanna Lok. Forestry Incentives to Establish and Manage Timber Trees in Coffee Fields. 1999.
MLA引文Viera, Carlos J., et al. Forestry Incentives to Establish and Manage Timber Trees in Coffee Fields. 1999.
警告:這些引文格式不一定是100%准確.